Mechanical water purifiers are for families looking for separate knobs for hot and cold water. Cuckoo’s mechanical water purifier products have an auto-sterilization function and a large tray that can hold glasses and big bowls easily. The system remains sterilized and free from bacteria. Warrior, VIVID, King Top, Queen Stand, and Fusion Top are the water purifiers that come in this category. These products have the biggest water tanks, yet a slim and compact design that allows you maximum flexibility and a great level of convenience. These models feature a user-friendly design and can fit in just about any space.